Ross is a small incorporated town in Marin County, California, United States, just north of San Francisco. Ross is located 1.5 miles (2.4 km) west-southwest of San Rafael, at an elevation of 36 feet (11 m). The population was 2,338 at the 2020 census. The town is bordered by San Rafael to the east, Kentfield to the south, San Anselmo to the north, and the Mount Tamalpais protected watershed to the west. Ross is named in honor of James Ross, who acquired Rancho Punta de Quentin in 1859.